Introduction

Choosing a digital agency is one of those decisions that looks straightforward until you actually have to make it.

Most agencies have polished websites.

Most have impressive case studies.

Most have experienced people in the pitch.

From the outside, they can look remarkably similar.

The problem is that many of the things which determine whether an agency relationship succeeds aren't obvious during a pitch.

I've spent more than 15 years working inside agencies of all shapes and sizes, from small six-person teams to agencies with more than 200 people. I've seen brilliant agencies, average agencies and a few that taught me exactly how not to do things.

One thing I've learnt is this:

Clients are often making one of the biggest commercial decisions they'll make without ever being shown how agencies actually work.

That's nobody's fault.

Unless you work in the industry, why would you know what questions to ask?

So I wanted to write the guide I wish more buyers had before they started speaking to agencies.

This isn't about convincing you to hire Pixeltree.

In fact, I'd encourage you to ask these questions of every agency you speak to—including us.

If they help you make a better decision, they've done their job.

1. Who will actually be doing the work?

Most agency pitches involve senior people.

That's understandable, they're experienced, they know the work and they're often responsible for winning new business.

The important question is what happens after the contract is signed.

In many agencies, the day-to-day delivery moves to a different team. That isn't inherently wrong; many junior and mid-level people do excellent work. The issue is continuity. Every handover introduces another opportunity for context to be lost.

Ask:

"Who will actually be working on my project three months from now?"

If the people who understand your business stay involved, you'll spend less time repeating yourself and more time making progress.

2. Does agency size really matter?

I've worked in agencies with six people.

I've also worked in agencies with more than 200.

Both can produce excellent work.

Larger agencies often bring more specialist depth, greater capacity and resilience.

Smaller agencies often provide faster access to experienced people and fewer organisational layers.

Neither model is automatically better.

The better question is:

"How close will I be to the people making the decisions?"

Access often matters more than headcount.

3. Awards are useful. They're not due diligence.

Awards recognise moments.

They don't necessarily tell you what it's like to work with an agency for two years.

Instead of only asking about awards, ask:

• Can I speak to long-term clients?

• What percentage of your work comes from existing clients?

• How long do clients typically stay with you?

Longevity is often a stronger indicator than trophies.

4. Cheapest rarely means lowest cost

Agency pricing is one of the easiest things to compare.

It's also one of the easiest things to misunderstand.

The cheapest proposal may involve more rework, weaker decision-making or less experienced oversight.

An experienced strategist asking one difficult question at the start of a project can save weeks of unnecessary delivery later.

Look beyond day rates.

Consider the cost of poor decisions.

5. More people doesn't automatically mean faster delivery

Adding people can increase capacity.

It can also increase communication overhead.

Every additional person introduces another conversation, another handover and another opportunity for misunderstandings.

Sometimes a small, experienced team moves significantly faster than a much larger one.

Ask how decisions are made, not just how many people are available.

6. What is the agency actually optimising for?

Every agency is running a business.

That means they'll have targets around utilisation, profitability and growth.

There's nothing wrong with that.

The important question is whether those commercial incentives are aligned with your success.

The strongest agency relationships are the ones where solving your problem is also good for the agency's business.

7. Every handover has a cost

One of the least visible costs in agency work is rebuilding context.

Every new person on a project needs to understand:

• your customers

• your business

• previous decisions

• internal politics

• commercial priorities

That takes time.

Continuity isn't just a nice experience.

It's commercially efficient.

8. AI changes what you should be buying

AI is already changing agency work.

Research.

Wireframes.

Documentation.

First drafts.

Much of that is becoming dramatically faster.

That's a good thing.

But it also changes what clients should value.

Don't just buy production.

Buy judgement.

Buy commercial thinking.

Buy experience.

Buy the ability to make better decisions.

Those things become more valuable as execution becomes easier.

9. A good agency should occasionally disagree with you

If every idea gets an enthusiastic "yes", I'd be cautious.

You're hiring expertise.

Expertise sometimes says:

"I don't think that's the right investment."

That isn't resistance.

It's the value you're paying for.

10. Ask about the business model, not just the process

Almost every agency has a process.

Discovery.

Strategy.

Design.

Delivery.

Support.

Those stages tell you what happens.

The business model tells you how it happens.

Who owns the relationship?

Who makes decisions?

When are specialists involved?

How are priorities managed?

Those answers will shape your experience far more than a beautifully designed process diagram.

The checklist

Before choosing an agency, I'd ask these ten questions:

✅ Who will actually be doing the work?

✅ How close will I be to the people making decisions?

✅ Can I speak to long-term clients?

✅ How should I compare value rather than price?

✅ How is the team structured?

✅ What are you optimising for?

✅ How do you minimise handovers?

✅ How are you using AI to benefit clients?

✅ Tell me about a time you advised a client not to do something.

✅ How is your business model designed?

Final thoughts

After 15 years inside agencies, I don't believe there is one perfect agency model.

There are brilliant small agencies.

Brilliant large agencies.

Specialists.

Generalists.

The important thing is understanding how an agency works before you commit to working with them.

The more informed you are as a buyer, the more likely you are to build a relationship that creates long-term value.

And if this guide helps you ask better questions, even if you never become a Pixeltree client, then it's achieved exactly what I hoped it would.